# Linwood Mine

- **MSHA mine ID:** 1300097
- **Status:** Active
- **Type / commodity:** Underground / Crushed, Broken Limestone NEC
- **Location:** Scott, IA
- **Operator:** Linwood Mining and Minerals Corporation
- **Controller:** Mc Carthy- Bush Corp
- **Public source rows linked:** 6,356
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Mc Carthy- Bush Corp (M00548) → Linwood Mining and Minerals Corporation (L08616) → Linwood Mine (1300097)**

Current identity source: `msha-mines`. This is a current snapshot, not a historical claim.

## Controller and operator valid-time history

- **Mc Carthy- Bush Corp → Linwood Mining and Minerals Corporation:** 1950-01-01 through current/open; derived from co-tenure at mine 1300097; source `msha-controller-operator-history`.

- History rows: 1
- Typed edges: 3
- Interval anomalies: 0
- Valid-time bounds: inclusive; date granularity; null end means open-ended in the upstream history row; not independent proof of present control.
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00.

## Assessment signals

1. **SAFETY — 18 since 2021:** Accidents and injuries 116 historical accident/injury rows; 1 coded fatalities and 310 lost days across the published record.
2. **COMPLIANCE — 336 since 2021:** Violations and penalties 1,264 violation rows across the full record; 216 carry an S&S flag and $338,515 appears in current assessed amounts.
3. **HEALTH — 338 samples:** Occupational health samples 319 personal; 19 area. 29 personal-sample rows have a published C/E ratio above 1; 0 noise rows have an action-level or PEL dose above 100%. These are separate measures, not a silica exceedance count. Silica results and sample status are shown separately.
4. **PRODUCTION — 0 tons:** Quarterly production and employment 31K employee hours and 55 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 324 linked rows:** Contests, conferences and decisions 111 contested-violation rows, 111 civil-penalty docket/decision rows, and 102 conference records linked by issuance number.
6. **CONTRACTORS — 21 linked entities:** Contractors Contractors are linked through this mine’s violation or accident records. Their production and hours cover all their operations, so they are not included in this mine’s totals.
7. **INSPECTIONS — 47 since 2021:** Inspections 203 inspection events and 9K published inspection hours across the historical record.

## EIA annual operating context

No matched record in the 2024 EIA coal-public workbook. This may be inapplicable for a non-coal operation.

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 57.12008 — Insulation and fittings for power wires and cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12008
- **30 CFR 57.4200 — General requirements.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4200
- **30 CFR 57.14107 — Moving machine parts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14107
- **30 CFR 57.14100 — Safety defects; examination, correction and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14100
- **30 CFR 57.4130 — Surface electric substations and liquid storage facilities.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4130
- **30 CFR 57.11003 — Construction and maintenance of ladders.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-J/section-57.11003
- **30 CFR 57.11002 — Handrails and toeboards.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-J/section-57.11002
- **30 CFR 57.11001 — Safe access.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-J/section-57.11001
- **30 CFR 57.3200 — Correction of hazardous conditions.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-B/section-57.3200

## Source coverage

- **Accident, Injuries, and Illnesses:** 116 rows; 2000-04-03 through 2026-08-26; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 1974-05-16 through 1974-05-16; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 19 rows; 2012-06-13 through 2024-11-14; source ID `msha-area-samples`
- **Assessed Violations:** 1,259 rows; 2000-01-03 through 2026-07-24; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 111 rows; 2007-06-26 through 2025-12-16; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 102 rows; 2000-08-17 through 2025-08-01; source ID `msha-conferences`
- **Contested Violations:** 111 rows; 2006-10-20 through 2024-12-17; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1,993 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 429 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 1 rows; 1950-01-01 through 1950-01-01; source ID `msha-controller-operator-history`
- **Inspections:** 203 rows; 2000-01-03 through 2026-07-13; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 353 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 74 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Metal and Nonmetal Personal Health Samples:** 319 rows; 2000-11-29 through 2026-04-22; source ID `msha-personal-health-samples`
- **Violations:** 1,264 rows; 2000-01-03 through 2026-07-24; source ID `msha-violations`

## Caveats

- This is public-record decision support, not legal advice or an official MSHA record.
- Missing data can indicate no event, publication delay, an unresolved identity, or inapplicability.
- Contractor production data is entity-level and is not attributed to this mine.

## Alternate representations

- HTML: `/mines/linwood-mine-1300097`
- JSON: `/api/v1/mines/linwood-mine-1300097`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1300097/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1300097/relationships`
- MCP resource: `mine://1300097/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`